git.sesse.net Git - vlc/blob - plugins/gnome/intf_gnome.c

   1 /*****************************************************************************
   2  * intf_gnome.c: Gnome interface
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000 VideoLAN
   5  *
   6  * Authors:
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #include "defs.h"
  27
  28 #include <errno.h>                                                 /* ENOMEM */
  29 #include <stdlib.h>                                                /* free() */
  30 #include <string.h>                                            /* strerror() */
  31 #include <sys/types.h>                        /* on BSD, uio.h needs types.h */
  32 #include <sys/uio.h>                                          /* for input.h */
  33
  34 #include <X11/Xlib.h>
  35 #include <X11/Xutil.h>
  36 #include <X11/keysym.h>
  37
  38 #include "config.h"
  39 #include "common.h"
  40 #include "threads.h"
  41 #include "mtime.h"
  42 #include "plugins.h"
  43
  44 #include "stream_control.h"
  45 #include "input_ext-intf.h"
  46
  47 #include "video.h"
  48 #include "video_output.h"
  49
  50 #include "audio_output.h" /* needed for mute */
  51
  52 #include "intf_msg.h"
  53 #include "interface.h"
  54
  55 #include "main.h"
  56
  57 #include <stdio.h>
  58
  59 #include <gnome.h>
  60
  61 #include "intf_gnome_thread.h"
  62 #include "intf_gnome.h"
  63 #include "intf_gnome_interface.h"
  64 #include "intf_gnome_support.h"
  65
  66 /*****************************************************************************
  67  * intf_GnomeCreate: initialize and create window
  68  *****************************************************************************/
  69 int intf_GnomeCreate( intf_thread_t *p_intf )
  70 {
  71     char       *psz_display;
  72
  73     /* Allocate instance and initialize some members */
  74     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  75     if( p_intf->p_sys == NULL )
  76     {
  77         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
  78         return( 1 );
  79     }
  80
  81     p_intf->p_sys->p_gnome = malloc( sizeof( gnome_thread_t ) );
  82     if( p_intf->p_sys->p_gnome == NULL )
  83     {
  84         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
  85         free( p_intf->p_sys );
  86         return( 1 );
  87     }
  88
  89     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
  90     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
  91     p_intf->p_sys->p_display = XOpenDisplay( psz_display );
  92     if( !p_intf->p_sys->p_display )                                 /* error */
  93     {
  94         intf_ErrMsg("error: can't open display %s\n", psz_display );
  95         free( p_intf->p_sys->p_gnome );
  96         free( p_intf->p_sys );
  97         return( 1 );
  98     }
  99     p_intf->p_sys->i_screen = DefaultScreen( p_intf->p_sys->p_display );
 100
 101     /* Spawn base window - this window will include the video output window */
 102     if( GnomeCreateWindow( p_intf ) )
 103     {
 104         intf_ErrMsg( "error: can't create output window\n" );
 105         XCloseDisplay( p_intf->p_sys->p_display );
 106         free( p_intf->p_sys->p_gnome );
 107         free( p_intf->p_sys );
 108         return( 1 );
 109     }
 110
 111     /* Spawn video output thread */
 112     if( p_main->b_video )
 113     {
 114         p_intf->p_vout = vout_CreateThread( psz_display, p_intf->p_sys->window,
 115                                             p_intf->p_sys->i_width,
 116                                             p_intf->p_sys->i_height, NULL, 0,
 117                                             (void *)&p_intf->p_sys->colormap );
 118
 119         if( p_intf->p_vout == NULL )                                /* error */
 120         {
 121             intf_ErrMsg("error: can't create video output thread\n" );
 122             GnomeDestroyWindow( p_intf );
 123             XCloseDisplay( p_intf->p_sys->p_display );
 124             free( p_intf->p_sys->p_gnome );
 125             free( p_intf->p_sys );
 126             return( 1 );
 127         }
 128     }
 129
 130     /* Spawn Gnome thread */
 131     p_intf->p_sys->p_gnome->b_die = 0;
 132     p_intf->p_sys->p_gnome->b_error = 0;
 133
 134     p_intf->p_sys->p_gnome->b_popup_changed = 0;
 135     p_intf->p_sys->p_gnome->b_window_changed = 0;
 136     p_intf->p_sys->p_gnome->b_playlist_changed = 0;
 137
 138     vlc_thread_create( &p_intf->p_sys->p_gnome->thread_id, "gnome",
 139                        (void *)GnomeThread, p_intf->p_sys->p_gnome );
 140
 141     /* create basic key bindings */
 142     intf_AssignNormalKeys( p_intf );
 143
 144
 145     /* Disable screen saver and return */
 146     p_intf->p_sys->i_ss_count = 1;
 147     GnomeDisableScreenSaver( p_intf );
 148     return( 0 );
 149 }
 150
 151 /*****************************************************************************
 152  * intf_GnomeDestroy: destroy interface window
 153  *****************************************************************************/
 154 void intf_GnomeDestroy( intf_thread_t *p_intf )
 155 {
 156     /* Enable screen saver */
 157     GnomeEnableScreenSaver( p_intf );
 158
 159     /* Close input thread, if any (blocking) */
 160     if( p_intf->p_input )
 161     {
 162         input_DestroyThread( p_intf->p_input, NULL );
 163     }
 164
 165     /* Close video output thread, if any (blocking) */
 166     if( p_intf->p_vout )
 167     {
 168         vout_DestroyThread( p_intf->p_vout, NULL );
 169     }
 170
 171     /* Close gnome thread, if any (blocking) */
 172     if( p_intf->p_sys->p_gnome->thread_id )
 173     {
 174         p_intf->p_sys->p_gnome->b_die = 1;
 175         intf_Msg( "waiting for Gnome thread to terminate\n" );
 176         vlc_thread_join( p_intf->p_sys->p_gnome->thread_id );
 177         intf_Msg( "Gnome thread terminated\n" );
 178     }
 179
 180     /* Close main window and display */
 181     GnomeDestroyWindow( p_intf );
 182     XCloseDisplay( p_intf->p_sys->p_display );
 183
 184     /* Destroy structures */
 185     free( p_intf->p_sys->p_gnome );
 186     free( p_intf->p_sys );
 187 }
 188
 189 /*****************************************************************************
 190  * intf_GnomeManage: event loop
 191  *****************************************************************************/
 192 void intf_GnomeManage( intf_thread_t *p_intf )
 193 {
 194     /* Manage main window */
 195     GnomeManageWindow( p_intf );
 196
 197     /* Manage messages from the Gnome interface */
 198     GnomeManageInterface( p_intf );
 199 }
 200
 201 /* following functions are local */
 202
 203 /*****************************************************************************
 204  * GnomeCreateWindow: open and set-up X11 main window
 205  *****************************************************************************/
 206 static int GnomeCreateWindow( intf_thread_t *p_intf )
 207 {
 208     XSizeHints              xsize_hints;
 209     XSetWindowAttributes    xwindow_attributes;
 210     XGCValues               xgcvalues;
 211     XEvent                  xevent;
 212     boolean_t               b_expose;
 213     boolean_t               b_configure_notify;
 214     boolean_t               b_map_notify;
 215
 216     /* Set main window's size */
 217     p_intf->p_sys->i_width =  main_GetIntVariable( VOUT_WIDTH_VAR,
 218                                                    VOUT_WIDTH_DEFAULT );
 219     p_intf->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 220                                                    VOUT_HEIGHT_DEFAULT );
 221
 222     /* Prepare window manager hints and properties */
 223     xsize_hints.base_width =            p_intf->p_sys->i_width;
 224     xsize_hints.base_height =           p_intf->p_sys->i_height;
 225     xsize_hints.flags =                 PSize;
 226     p_intf->p_sys->wm_protocols =       XInternAtom( p_intf->p_sys->p_display,
 227                                                      "WM_PROTOCOLS", True );
 228     p_intf->p_sys->wm_delete_window =   XInternAtom( p_intf->p_sys->p_display,
 229                                                      "WM_DELETE_WINDOW", True );
 230
 231     /* Prepare window attributes */
 232     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 233     xwindow_attributes.background_pixel = WhitePixel( p_intf->p_sys->p_display,
 234                                                       p_intf->p_sys->i_screen );
 235
 236     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 237
 238     /* Create the window and set hints - the window must receive ConfigureNotify
 239      * events, and, until it is displayed, Expose and MapNotify events. */
 240     p_intf->p_sys->window =
 241             XCreateWindow( p_intf->p_sys->p_display,
 242                            DefaultRootWindow( p_intf->p_sys->p_display ),
 243                            0, 0,
 244                            p_intf->p_sys->i_width, p_intf->p_sys->i_height, 1,
 245                            0, InputOutput, 0,
 246                            CWBackingStore | CWBackPixel | CWEventMask,
 247                            &xwindow_attributes );
 248
 249     /* Set window manager hints and properties: size hints, command,
 250      * window's name, and accepted protocols */
 251     XSetWMNormalHints( p_intf->p_sys->p_display, p_intf->p_sys->window,
 252                        &xsize_hints );
 253     XSetCommand( p_intf->p_sys->p_display, p_intf->p_sys->window,
 254                  p_main->ppsz_argv, p_main->i_argc );
 255     XStoreName( p_intf->p_sys->p_display, p_intf->p_sys->window, VOUT_TITLE );
 256     if( (p_intf->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 257         || (p_intf->p_sys->wm_delete_window == None)
 258         || !XSetWMProtocols( p_intf->p_sys->p_display, p_intf->p_sys->window,
 259                              &p_intf->p_sys->wm_delete_window, 1 ) )
 260     {
 261         /* WM_DELETE_WINDOW is not supported by window manager */
 262         intf_Msg("error: missing or bad window manager - please exit program kindly.\n");
 263     }
 264
 265     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 266      * event when using functions like XCopyArea */
 267     xgcvalues.graphics_exposures = False;
 268     p_intf->p_sys->gc =  XCreateGC( p_intf->p_sys->p_display, p_intf->p_sys->window,
 269                                     GCGraphicsExposures, &xgcvalues);
 270
 271     /* Send orders to server, and wait until window is displayed - three
 272      * events must be received: a MapNotify event, an Expose event allowing
 273      * drawing in the window, and a ConfigureNotify to get the window
 274      * dimensions. Once those events have been received, only ConfigureNotify
 275      * events need to be received. */
 276     b_expose = 0;
 277     b_configure_notify = 0;
 278     b_map_notify = 0;
 279     XMapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window);
 280     do
 281     {
 282         XNextEvent( p_intf->p_sys->p_display, &xevent);
 283         if( (xevent.type == Expose)
 284             && (xevent.xexpose.window == p_intf->p_sys->window) )
 285         {
 286             b_expose = 1;
 287         }
 288         else if( (xevent.type == MapNotify)
 289                  && (xevent.xmap.window == p_intf->p_sys->window) )
 290         {
 291             b_map_notify = 1;
 292         }
 293         else if( (xevent.type == ConfigureNotify)
 294                  && (xevent.xconfigure.window == p_intf->p_sys->window) )
 295         {
 296             b_configure_notify = 1;
 297             p_intf->p_sys->i_width = xevent.xconfigure.width;
 298             p_intf->p_sys->i_height = xevent.xconfigure.height;
 299         }
 300     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 301
 302     XSelectInput( p_intf->p_sys->p_display, p_intf->p_sys->window,
 303                   StructureNotifyMask | KeyPressMask | ButtonPressMask );
 304
 305     if( XDefaultDepth(p_intf->p_sys->p_display, p_intf->p_sys->i_screen) == 8 )
 306     {
 307         /* Allocate a new palette */
 308         p_intf->p_sys->colormap = XCreateColormap( p_intf->p_sys->p_display,
 309                               DefaultRootWindow( p_intf->p_sys->p_display ),
 310                               DefaultVisual( p_intf->p_sys->p_display,
 311                                              p_intf->p_sys->i_screen ),
 312                               AllocAll );
 313
 314         xwindow_attributes.colormap = p_intf->p_sys->colormap;
 315         XChangeWindowAttributes( p_intf->p_sys->p_display,
 316                                  p_intf->p_sys->window,
 317                                  CWColormap, &xwindow_attributes );
 318     }
 319
 320     /* At this stage, the window is open, displayed, and ready to receive data */
 321     return( 0 );
 322 }
 323
 324 /*****************************************************************************
 325  * GnomeDestroyWindow: destroy X11 main window
 326  *****************************************************************************/
 327 static void GnomeDestroyWindow( intf_thread_t *p_intf )
 328 {
 329     XUnmapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
 330     XFreeGC( p_intf->p_sys->p_display, p_intf->p_sys->gc );
 331     XDestroyWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
 332 }
 333
 334 /*****************************************************************************
 335  * GnomeManageWindow: manage X11 main window
 336  *****************************************************************************/
 337 static void GnomeManageWindow( intf_thread_t *p_intf )
 338 {
 339     XEvent      xevent;                                         /* X11 event */
 340     boolean_t   b_resized;                        /* window has been resized */
 341     char        i_key;                                    /* ISO Latin-1 key */
 342
 343     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 344      * output window's size changed, MapNotify and UnmapNotify to know if the
 345      * window is mapped (and if the display is useful), and ClientMessages
 346      * to intercept window destruction requests */
 347     b_resized = 0;
 348     while( XCheckWindowEvent( p_intf->p_sys->p_display, p_intf->p_sys->window,
 349                               StructureNotifyMask | KeyPressMask |
 350                               ButtonPressMask, &xevent ) == True )
 351     {
 352         /* ConfigureNotify event: prepare  */
 353         if( (xevent.type == ConfigureNotify)
 354             && ((xevent.xconfigure.width != p_intf->p_sys->i_width)
 355                 || (xevent.xconfigure.height != p_intf->p_sys->i_height)) )
 356         {
 357             /* Update dimensions */
 358             b_resized = 1;
 359             p_intf->p_sys->i_width = xevent.xconfigure.width;
 360             p_intf->p_sys->i_height = xevent.xconfigure.height;
 361         }
 362         /* MapNotify event: change window status and disable screen saver */
 363         else if( xevent.type == MapNotify)
 364         {
 365             if( (p_intf->p_vout != NULL) && !p_intf->p_vout->b_active )
 366             {
 367                 GnomeDisableScreenSaver( p_intf );
 368                 p_intf->p_vout->b_active = 1;
 369             }
 370         }
 371         /* UnmapNotify event: change window status and enable screen saver */
 372         else if( xevent.type == UnmapNotify )
 373         {
 374             if( (p_intf->p_vout != NULL) && p_intf->p_vout->b_active )
 375             {
 376                 GnomeEnableScreenSaver( p_intf );
 377                 p_intf->p_vout->b_active = 0;
 378             }
 379         }
 380         /* Keyboard event */
 381         else if( xevent.type == KeyPress )
 382         {
 383             if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 384             {
 385                 if( intf_ProcessKey( p_intf, i_key ) )
 386                 {
 387                     intf_DbgMsg( "unhandled key '%c' (%i)\n", (char) i_key, i_key );
 388                 }
 389             }
 390         }
 391         /* Mouse click */
 392         else if( xevent.type == ButtonPress )
 393         {
 394             switch( ((XButtonEvent *)&xevent)->button )
 395             {
 396                 case Button1:
 397                     /* in this part we will eventually manage
 398                      * clicks for DVD navigation for instance */
 399                     break;
 400
 401                 case Button2:
 402                     GnomeTogglePointer( p_intf );
 403                     break;
 404
 405                 case Button3:
 406                     /* toggle the menu display */
 407                     vlc_mutex_lock( &p_intf->p_sys->p_gnome->change_lock );
 408                     p_intf->p_sys->p_gnome->b_popup_changed = 1;
 409                     vlc_mutex_unlock( &p_intf->p_sys->p_gnome->change_lock );
 410                     break;
 411             }
 412
 413         }
 414 #ifdef DEBUG
 415         /* Other event */
 416         else
 417         {
 418             intf_DbgMsg( "%p -> unhandled event type %d received\n",
 419                          p_intf, xevent.type );
 420         }
 421 #endif
 422     }
 423
 424     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 425      * are handled - according to the man pages, the format is always 32
 426      * in this case */
 427     while( XCheckTypedEvent( p_intf->p_sys->p_display,
 428                              ClientMessage, &xevent ) )
 429     {
 430         if( (xevent.xclient.message_type == p_intf->p_sys->wm_protocols)
 431             && (xevent.xclient.data.l[0] == p_intf->p_sys->wm_delete_window ) )
 432         {
 433             p_intf->b_die = 1;
 434         }
 435         else
 436         {
 437             intf_DbgMsg( "%p -> unhandled ClientMessage received\n", p_intf );
 438         }
 439     }
 440
 441     /*
 442      * Handle vout or interface windows resizing
 443      */
 444     if( p_intf->p_vout != NULL )
 445     {
 446         if( b_resized )
 447         {
 448             /* If interface window has been resized, change vout size */
 449             intf_DbgMsg( "resizing output window\n" );
 450             vlc_mutex_lock( &p_intf->p_vout->change_lock );
 451             p_intf->p_vout->i_width =  p_intf->p_sys->i_width;
 452             p_intf->p_vout->i_height = p_intf->p_sys->i_height;
 453             p_intf->p_vout->i_changes |= VOUT_SIZE_CHANGE;
 454             vlc_mutex_unlock( &p_intf->p_vout->change_lock );
 455         }
 456         else if( (p_intf->p_vout->i_width  != p_intf->p_sys->i_width) ||
 457                  (p_intf->p_vout->i_height != p_intf->p_sys->i_height) )
 458         {
 459            /* If video output size has changed, change interface window size */
 460             intf_DbgMsg( "resizing output window\n" );
 461             p_intf->p_sys->i_width =    p_intf->p_vout->i_width;
 462             p_intf->p_sys->i_height =   p_intf->p_vout->i_height;
 463             XResizeWindow( p_intf->p_sys->p_display, p_intf->p_sys->window,
 464                            p_intf->p_sys->i_width, p_intf->p_sys->i_height );
 465         }
 466     }
 467 }
 468
 469 /*****************************************************************************
 470  * GnomeEnableScreenSaver: enable screen saver
 471  *****************************************************************************
 472  * This function enable the screen saver on a display after it had been
 473  * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
 474  * know wether the screen saver can be activated or not: if n successive calls
 475  * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
 476  * will be required before the screen saver could effectively be activated.
 477  *****************************************************************************/
 478 void GnomeEnableScreenSaver( intf_thread_t *p_intf )
 479 {
 480     if( p_intf->p_sys->i_ss_count++ == 0 )
 481     {
 482         intf_Msg( "Enabling screen saver\n" );
 483         XSetScreenSaver( p_intf->p_sys->p_display, p_intf->p_sys->i_ss_timeout,
 484                          p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
 485                          p_intf->p_sys->i_ss_exposure );
 486     }
 487 }
 488
 489 /*****************************************************************************
 490  * GnomeDisableScreenSaver: disable screen saver
 491  *****************************************************************************
 492  * See XEnableScreenSaver
 493  *****************************************************************************/
 494 void GnomeDisableScreenSaver( intf_thread_t *p_intf )
 495 {
 496     if( --p_intf->p_sys->i_ss_count == 0 )
 497     {
 498         /* Save screen saver informations */
 499         XGetScreenSaver( p_intf->p_sys->p_display, &p_intf->p_sys->i_ss_timeout,
 500                          &p_intf->p_sys->i_ss_interval, &p_intf->p_sys->i_ss_blanking,
 501                          &p_intf->p_sys->i_ss_exposure );
 502
 503         /* Disable screen saver */
 504         intf_Msg("Disabling screen saver\n");
 505         XSetScreenSaver( p_intf->p_sys->p_display, 0,
 506                          p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
 507                          p_intf->p_sys->i_ss_exposure );
 508     }
 509 }
 510
 511 /*****************************************************************************
 512  * GnomeTogglePointer: hide or show the mouse pointer
 513  *****************************************************************************
 514  * This function hides the X pointer if it is visible by putting it at
 515  * coordinates (32,32) and setting the pointer sprite to a blank one. To
 516  * show it again, we disable the sprite and restore the original coordinates.
 517  *****************************************************************************/
 518 void GnomeTogglePointer( intf_thread_t *p_intf )
 519 {
 520     static Cursor cursor;
 521     static boolean_t b_cursor = 0;
 522
 523     if( p_intf->p_sys->b_mouse )
 524     {
 525         p_intf->p_sys->b_mouse = 0;
 526
 527         if( !b_cursor )
 528         {
 529             XColor color;
 530             Pixmap blank = XCreatePixmap( p_intf->p_sys->p_display,
 531                                DefaultRootWindow(p_intf->p_sys->p_display),
 532                                1, 1, 1 );
 533
 534             XParseColor( p_intf->p_sys->p_display,
 535                          XCreateColormap( p_intf->p_sys->p_display,
 536                                           DefaultRootWindow(
 537                                                   p_intf->p_sys->p_display ),
 538                                           DefaultVisual(
 539                                                   p_intf->p_sys->p_display,
 540                                                   p_intf->p_sys->i_screen ),
 541                                           AllocNone ),
 542                          "black", &color );
 543
 544             cursor = XCreatePixmapCursor( p_intf->p_sys->p_display,
 545                            blank, blank, &color, &color, 1, 1 );
 546
 547             b_cursor = 1;
 548         }
 549         XDefineCursor( p_intf->p_sys->p_display,
 550                        p_intf->p_sys->window, cursor );
 551     }
 552     else
 553     {
 554         p_intf->p_sys->b_mouse = 1;
 555
 556         XUndefineCursor( p_intf->p_sys->p_display, p_intf->p_sys->window );
 557     }
 558 }
 559
 560 /*****************************************************************************
 561  * GnomeManageInterface: manage messages from the Gnome interface
 562
 563  *****************************************************************************
 564  * In this function, called approx. 10 times a second, we check what the
 565  * Gnome interface wanted to tell us.
 566  *****************************************************************************/
 567 static void GnomeManageInterface( intf_thread_t *p_intf )
 568 {
 569     gnome_thread_t *p_gnome = p_intf->p_sys->p_gnome;
 570
 571     /* lock the change structure */
 572     vlc_mutex_lock( &p_gnome->change_lock );
 573
 574     /* you killed my father, prepare to die */
 575     if( p_gnome->b_die )
 576     {
 577         p_intf->b_die = 1;
 578     }
 579
 580     if( p_gnome->b_activity_changed )
 581     {
 582         vlc_mutex_lock( &p_intf->p_vout->picture_lock );
 583         p_intf->p_vout->b_active = p_gnome->b_activity;
 584         /* having to access p_main sucks */
 585         p_main->p_aout->b_active = p_gnome->b_activity;
 586         vlc_mutex_unlock( &p_intf->p_vout->picture_lock );
 587
 588         p_gnome->b_activity_changed = 0;
 589     }
 590
 591     /* unlock the change structure */
 592     vlc_mutex_unlock( &p_gnome->change_lock );
 593 }
 594
 595 /*****************************************************************************
 596  * GnomeManageMain: manage main thread messages
 597  *****************************************************************************
 598  * In this function, called approx. 10 times a second, we check what the
 599  * main program wanted to tell us.
 600  *****************************************************************************/
 601 static gint GnomeManageMain( gpointer p_data )
 602 {
 603     gnome_thread_t *p_gnome = (void *)p_data;
 604
 605     /* lock the change structure */
 606     vlc_mutex_lock( &p_gnome->change_lock );
 607
 608     if( p_gnome->b_die )
 609     {
 610         /* unlock the change structure */
 611         vlc_mutex_unlock( &p_gnome->change_lock );
 612
 613         /* prepare to die, young man */
 614         gtk_main_quit();
 615         return( FALSE );
 616     }
 617
 618     /* if the "display popup" flag has changed */
 619     if( p_gnome->b_popup_changed )
 620     {
 621         gnome_popup_menu_do_popup( p_gnome->p_popup,
 622                                    NULL, NULL, NULL, NULL );
 623         p_gnome->b_popup_changed = 0;
 624     }
 625
 626     /* unlock the change structure */
 627     vlc_mutex_unlock( &p_gnome->change_lock );
 628
 629     return( TRUE );
 630 }
 631
 632 /*****************************************************************************
 633  * GnomeThread: special Gnome thread
 634  *****************************************************************************
 635  * this part of the interface is in a separate thread so that we can call
 636  * gtk_main() from within it without annoying the rest of the program.
 637  * XXX: the approach may look kludgy, and probably is, but I could not find
 638  * a better way to dynamically load a Gnome interface at runtime.
 639  *****************************************************************************/
 640 void GnomeThread( gnome_thread_t *p_gnome )
 641 {
 642     /* gnome_init needs to know the command line. We don't care, so we
 643      * give it an empty one */
 644     char *p_args[] = { };
 645
 646     /* Sleep to avoid using all CPU - since some interfaces needs to access
 647      * keyboard events, a 100ms delay is a good compromise */
 648     gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GnomeManageMain, p_gnome );
 649
 650     gnome_init( "vlc", VERSION, 1, p_args );
 651
 652     /* create some useful widgets that will certainly be used */
 653     p_gnome->p_window = create_intf_window();
 654     p_gnome->p_popup = create_intf_popup( );
 655
 656     /* we don't create these ones yet because we perhaps won't need them */
 657     p_gnome->p_about = NULL;
 658     p_gnome->p_playlist = NULL;
 659
 660     /* store p_sys to keep an eye on it */
 661     gtk_object_set_data( GTK_OBJECT(p_gnome->p_window), "p_gnome", p_gnome );
 662     gtk_object_set_data( GTK_OBJECT(p_gnome->p_popup), "p_gnome", p_gnome );
 663
 664     /* show the control window */
 665     //gtk_widget_show( p_gnome->p_window );
 666
 667     /* enter gnome mode */
 668     gtk_main();
 669 }
 670